Answer:
-9x+1 = -x +17
-8x = 16
x = -2
Step-by-step explanation:
Answer:
Cosθ= -√2/3
Sinθ= -√7/3
tanβ= 4/3
Sinβ= 4/5
Cosβ= 3/5
sin(θ+β) = sin(θ)cos(β)+cos(θ)sin(β)
(-√7/3)(3/5) + (-√2/3)(4/5)
-√7/5 - 4√2/15
88°, 34°, 58°. The three interior angles of any regular triangle has a total of 180°.
88+34+58=180